But Bellerin raced to the rescue in the second minute of added time, smashing a shot high into the net to calm Wenger a little.

The Frenchman’s nerves, though, were tested even after that as his dopey defenders allowed Alvaro Morata to race clean through.

His tame shot was beaten away by Petr Cech and Davide Zappacosta struck the rebound against the bar.

England midfielder Wilshere hadn’t scored in the top flight since a home goal against West Brom in May 2015.

But he ended his drought when he smashed home a rocket.

Wilshere pounced when Morata inadvertently deflected a Rob Holding pass straight into the Arsenal No.10’s path and his powerful drive flashed in off the near post.

Before all the goals Chelsea’s former keeper and their current one had taken centre stage at The Emirates.

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Jack Wilshere notched his first Premier League goal since May 2015

Arsenal’s Cech and his successor at Stamford Bridge did everything in their powers to stop another goalfest in north London.

Liverpool drew 3-3 with Arsenal on the Friday before Christmas and this clash with also packed with incident.

Cech was chasing a 200th Premier League clean sheet, something no other keeper has done before, whereas Courtois was bidding to make it five in a row in the top flight this season.

The Gunners had a massively lucky escape in the 14th minute. Right wing-back Victor Moses punted a ball upfield with his left foot and Calum Chambers allowed it to drop over his shoulder.

Morata was away from him in a flash and looked set to score as he bore down on goal. But he overdid his sidefooted attempted finish and put it wide.

In the 17th minute the Blues had an even bigger dose of fortune. First referee Taylor waved away claims for a penalty when Ainsley Maitland-Niles fell in the box, with replays showing the youngster had tripped himself after being brushed by Victor Moses.

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Eden Hazard pulled Chelsea level from the spot

But the ball still broke to Alexis Sanchez in the box, the Chile striker poked a right-foot shot which hit Courtois brilliantly pushed onto his right post, the watch it roll along the line and struck the other one before he gratefully collected.

Courtois and Cech then took it in turns to pull of smart saves. But then Wilshere struck and Hazard bagged that controversial penalty.

Alonso pounced after sub Zappacosta got past Ainsley Maitland-Niles - who had been excellent up until then. Alonso nipped in front of Shkodran Mustafi to bury a right foot shot.

A Wenger red rage looked on until Alonso headed out poorly and Bellerin whacked his half-volley - and even Courtois could got near it.

It ensured the Arsenal boss went off without waiting for Taylor.

But with his team 23 points off leaders Manchester City he has little to be cheerful about.

As for Antonio Conte he will wonder how star striker Morata fluffed those two great chances ensuring Chelsea stay third.